苹果苦痘病的发生与预防机理浅析

Study on the Occurrence and Prevention Mechanism of Apple Bitter Pit

[目的]探讨不同施肥处理对苦痘病情况的影响,旨在探求苹果苦痘病的防病机理。[方法]对大连瓦房店的苹果产区常发病果树进行不同氮钙镁施肥处理。[结果]随着硫酸镁浓度,氮肥施用量的增加,病果率提高,而随着Ca2000钙宝用量的增加,病果率下降。[结论]镁素、氮素显著的提高了果树的病果率,而钙肥则降低了果树苦痘病的发病率。

[Objective] To explore the effect of different fertilization treatments on bitter pit disease, and disscuss the mechanism of disease control. [Method] Apple in Dalian Wafangdian area were treated by different concentration of N, Mg and Ca. [Resuitsl With MgS04 and N fertilizer increased, diseased fruit rate increased. With amout of Ca2000 increased, diseased fruit rate decreased. [Conelusionl Mg and N increased bitter pit disease, while Ca decreased it.